-#!/usr/local/bin/perl
+#!/usr/bin/perl
+#
+# Empire - A multi-player, client/server Internet based war game.
+# Copyright (C) 1986-2018, Dave Pare, Jeff Bailey, Thomas Ruschak,
+# Ken Stevens, Steve McClure, Markus Armbruster
+#
+# Empire is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# ---
+#
+# See files README, COPYING and CREDITS in the root of the source
+# tree for related information and legal notices. It is expected
+# that future projects/authors will amend these files as needed.
+#
+# ---
+#
+# emp2html.pl: Convert info source to HTML
+#
+# Known contributors to this file:
+# Drake Diedrich, 1996
+# Markus Armbruster, 2004-2013
+#
+# Usage: emp2html.pl INFO...
+#
+# Convert info source on standard input to HTML on standard output.
+# INFO... are the info page names.
+
+use strict;
+use warnings;
+
+my $in_nf = 0;
+my $esc = "\\";
+my $ignore = 0;
+my $is_subj;
+my @a;
+my %topic;
+
+for (@ARGV) {
+ $topic{$_} = 1;
+}
+print "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n";
+print " \"http://www.w3.org/TR/html4/strict.dtd\">\n";
+print "<html>\n";
+print "<head>\n";
-$[ = 1; # set array base to 1
+line: while (<STDIN>) {
+ chomp; # strip record separator
+ s/((^|[^\\])(\\\\)*)\\\".*/$1/g; # strip comments
-line: while (<>) {
- chop; # strip record separator
- @Fld = split(' ', $_, 9999);
+ @a = req($_);
-procline:
- if (/^\.TH/) {
- $str=$Fld[3];
- for ($i=4;$i <= $#Fld; $i++) {
- $str .= " " . $Fld[$i];
+ if (!@a) {
+ if ($is_subj && $in_nf) {
+ while ($_ =~ /[A-Za-z0-9\-\.]+/g) {
+ print htmlify("$`");
+ print anchor("$&");
+ $_="$'";
+ }
}
- $str = &htmlify($str);
- printf("<title>%s : %s</title><h1>%s : %s</h1>\n",
- $Fld[2],$str,$Fld[2], $str);
+ print htmlify($_), "\n" unless $ignore;
next line;
}
- if (/^\.SY/) {
-# $i = $_ =~ "\"" && ($RLENGTH = length($&), $RSTART = length($`)+1);
-# $str = substr($_, $i + 1, length($_) - $i - 1);
- $str = substr($_,5);
- $str = &htmlify($str);
- printf "<samp>[##:##] </samp><KBD>%s</KBD><p>\n", $str;
+ # requests
+
+ if ($a[1] eq "ig") { $ignore = 1; next line; }
+ if ($ignore) {
+ $ignore = 0 if $a[1] eq "..";
next line;
}
- if (/^\.EX/) {
- $str = substr($_, 5);
- printf "<br><samp>[##:##] </samp><kbd>%s</kbd><p>\n", &htmlify($str);
+ if ($a[1] eq "TH") {
+ @a = checkarg(2, @a);
+ $is_subj = $a[2] eq 'Subject' || $a[2] eq 'Info';
+ $a[3] = htmlify($a[3]);
+ print "<title>$a[2] : $a[3]</title>\n";
+ print "</head>\n";
+ print "<body>\n";
+ print "<h1>$a[2] : $a[3]</h1>\n";
+ print "<p>\n";
next line;
}
- if (/^\.L/) {
- $str = substr($_, 4);
- printf "<h2>%s</h2>\n", &htmlify($str);
+ if ($a[1] eq "SY") {
+ @a = checkarg(1, @a);
+ $a[2] = htmlify($a[2]);
+ print "<samp>[##:##] Command : </samp><KBD>$a[2]</KBD><p>\n";
next line;
}
- if (/^\.(NF|nf)/) { printf (("<p><pre>\n")); next line; }
- if (/^\.(FI|fi)/) { printf (("</pre><p>\n")); next line; }
- if (/^\.s3/) { printf (("<p>\n")); next line; }
- if (/^\.s1/) {printf (("<hr> \n")); next line; }
- if (/^\.br/) { printf "<br>\n"; next line; }
- if (/^\.SA/) {
- @a = split('[: ",.]+');
-
- printf("See also : %s\n",&anchor($a[3]) );
- for ($i = 4; $i <= $#a ; ($i)++) {
- printf(", %s\n",&anchor($a[$i]));
- }
+ if ($a[1] eq "EX") {
+ my $str = htmlify(join(' ',@a[2..$#a]));
+ print "<br><samp>[##:##] Command : </samp><kbd>$str</kbd><p>\n";
+ next line;
+ }
- while (<>) {
- chop; # strip record separator
- @a = split('[: ,.]+');
- @Fld = split(' ', $_, 9999);
- if (/^\./) { goto procline; }
- for ($i = 1; $i <= $#a ; ($i)++) {
- printf(", %s\n",&anchor($a[$i]));
- }
- }
-
- exit(0);
+ if ($a[1] eq "L" && $is_subj) {
+ $a[2] =~ / /;
+ print "<br>" . anchor("$`") . " $'\n";
+ next line;
}
-
- if (/^\./) { next line; }
- if (/^(See also|See Also|see also)/) {
- @a = split('[: ,.]+');
+ if ($a[1] =~ /^LV?$/) {
+ @a = checkarg(1, @a);
+ $a[2] = htmlify($a[2]);
+ print "<h2>$a[2]</h2>\n";
+ print "<p>\n";
+ next line;
+ }
- printf("See also : %s\n",&anchor($a[3]) );
- for ($i = 4; $i <= $#a ; ($i)++) {
- printf(", %s\n",&anchor($a[$i]));
- }
+ if ($a[1] eq "eo") { $esc = 0; next line; }
+ if ($a[1] eq "ec") { $esc = $#a == 1 ? "\\" : $a[2]; next line; }
- while (<>) {
- chop; # strip record separator
- @a = split('[: ,.]+');
- @Fld = split(' ', $_, 9999);
- if (/^\./) { goto procline; }
- for ($i = 1; $i <= $#a ; ($i)++) {
- printf(", %s\n",&anchor($a[$i]));
- }
+ if ($a[1] =~ /NF|nf/i) { $in_nf = 1; printf (("<p><pre>\n")); next line; }
+ if ($a[1] =~ /FI|fi/i) { $in_nf = 0; printf (("</pre><p>\n")); next line; }
+ if ($a[1] eq "s1") { printf (("<hr><p>\n")); next line; }
+ if ($a[1] eq "br") { printf "<br>\n"; next line; }
+
+ if ($a[1] eq "SA") {
+ @a = checkarg(1, @a);
+ @a = split(/[\: \"\,\.]+/, $a[2]);
+ for my $a (@a) {
+ $a = anchor($a);
}
-
- exit(0);
+ print "<p>See also : ", join("\n, ", @a), "\n";
}
-
- printf "%s\n", &htmlify($_);
+
+ # ignore unknown request
}
-#sub anchor {
-# local($_) = @_;
-# $file = $_ . ".t";
-# if (-r $file) {
-# return ("<a href=" . $_ . ".html" . ">" . $_ . "</a>");
-# } else {
-# return ( " " . $_ . " ");
-# }
-#}
+print "</body>\n";
+print "</html>\n";
-sub anchor {
- local($_) = @_;
- local(@file,$file);
- $file = $_ . ".t";
-# if (-r $file) {
- if (1) {
- $file =~ s/.t$/.html/;
- return ("<a href=\"$file\">$_</a>");
- } else {
- @file = <$_*t>;
- if (@file) {
- warn "Expanding $_ to $file[$[]\n";
- $file[$[] =~ s/.t$/.html/;
- return ("<a href=\"$file[$[]\">$_</a>");
- } else {
- warn "Unable to link $_\n";
- return ( "<em>$_</em>");
+sub req {
+ local ($_) = @_;
+ if (/^([\.\'])[ \t]*([^ ]*) *(.*)/) {
+ my @a = ($1, $2);
+ $_ = $3;
+ while (/\G(\"((\\.|[^\\\"])*)(\"|\Z))|\G(([^ ]|\\.)+) */g) {
+ push(@a, $2 || $5);
}
+ return @a;
+ }
+ return ();
+}
+
+sub checkarg {
+ my ($n, @a) = @_;
+ warn "extra arguments for $a[1] ignored" if $#a > $n+1;
+ warn "missing arguments for $a[1] supplied" if $#a < $n+1;
+ while ($#a < $n+1) {
+ push @a, "";
}
+ return @a;
+}
+
+sub anchor {
+ local ($_) = @_;
+ return $topic{$_} ? "<a href=\"$_.html\">$_</a>" : $_;
}
-
# Translate HTML special characters into escape sequences
sub htmlify {
- local($_) = @_;
- s/^\"(.*)\"$/$1/;
- s/\\&//g; # a nothing character
- s/\&/&/g;
- s/\</</g;
- s/\>/>/g;
- while (@a = /(\\\*Q)([A-Za-z0-9\-\.]+)(\\\*U)/) {
- /(\\\*Q)([A-Za-z\-]+)(\\\*U)/;
- $_ = $` . &anchor($a[2]) . $';
- }
- while (@a = /(\\\*Q)(\"info )([A-Za-z0-9\-\.]+)(\\\*U)/) {
- /(\\\*Q)(\"info )([\w\-\.]+)(\\\*U)/;
- $_ = $` . "\"info " . &anchor($a[3]) . $';
- }
- while (@a = /(\"info )([A-Za-z0-9\-\.]+)/) {
- /(\"info )([\w\-\.]+)/;
- $_ = $` . "\"info " . &anchor($a[2]) . $';
+ local ($_) = @_;
+ die "funny escape character `$esc' not supported"
+ if $esc && $esc ne "\\";
+ # translate some troff escapes
+ s/\\&//g if $esc; # zero width space character
+ # escape HTML special characters
+ s/\&/&/g;
+ s/\</</g;
+ s/\>/>/g;
+ return $_ unless $esc;
+ # translate more troff escapes
+ s/\\e/&\#92;/g; # escape character
+ # turn quoted strings that look like info names into links
+ # tacky...
+ my $pfx = "";
+ while (/\\\*Q([A-Za-z0-9\-\.]+)\\\*U|\"info ([A-Za-z0-9\-\.]+)\"/) {
+ if (defined $1 && $topic{$1}) {
+ $pfx = $` . anchor($1);
+ } elsif (defined $2 && $topic{$2}) {
+ $pfx = "$`\"info " . anchor($2) . "\"";
+ } else {
+ $pfx .= $` . $&;
}
- s/\\\*Q/<em>/g;
- s/\\\*U/<\/em>/g;
- s/\\fI/<em>/g;
- s/\\fR/<\/em><\/em>/g;
- s/\\fB/<strong>/g;
- s/\\fP/<\/strong><\/em>/g;
- s/\\\*\(bF/<strong>/g; # bold font
- s/\\\*\(pF/<\/strong><\/em>/g; # pica font
- s/\\\*\(nF/<\/strong><\/em>/g; # normal font
- s/\\\*\(iF/<em>/g; # italic font
- s/\\\(mu/x/g; # multiply symbol
- s/\\ / /g; # should be non breaking space
- return $_;
+ $_ = "$'";
+ }
+ $_ = "$pfx$_";
+ # tranlate more troff escapes and strings
+ s/\\\*Q/<em>/g;
+ s/\\\*U/<\/em>/g;
+ s/\\fI/<em>/g;
+ s/\\fR/<\/em><\/em>/g;
+ s/\\fB/<strong>/g;
+ s/\\fP/<\/strong><\/em>/g;
+ s/\\\*\(bF/<strong>/g; # bold font
+ s/\\\*\(pF/<\/strong><\/em>/g; # pica font
+ s/\\\*\(nF/<\/strong><\/em>/g; # normal font
+ s/\\\*\(iF/<em>/g; # italic font
+ s/\\\(mu/x/g; # multiply symbol
+ s/\\ / /g; # non breaking space
+ return $_;
}
-
-#sub htmlify {
-# local($str) = @_;
-# $str;
-#}
-
-
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